Galvanized Steel Grating Steel grating finished:galvanized or black Advantages:light weight, strong intensity, easy to instal galvanized steel grating steel gratinggalvanized steel grating 1.materials:mild steel2. Standard: (1). bearing bar pitches may be 12.5, 15 to 30, 40, 60, 80 and 90mm, of which 30 and 40mm are recommended. (2).Cross bar pitch may be 30, 38, 50, 76 and 100mm, of which 50 and ...